Toner cartridge installation structure for electrophotographic machine
Inactive Publication Date: 2001-01-23
ASAHI KOGAKU KOGYO KK
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
The slot door may preferably serve to substantially prevent ambient light from entering the slot when located at the first position.
Problems solved by technology
After use of the machine for a certain length of time, such as several weeks or months, the supply of toner in the toner reservoir is depleted, necessitating toner replenishment in the machine.
This operation, however, is not always easy, in particular when the toner cartridge is relatively large and heavy, due to the relatively tight geometry of the slot.
Method used
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Embodiment Construction
Referring now to the accompanying drawings, a preferred embodiment of the present invention will be described in detail.
FIGS. 1 to 3 show an electrophotographic machine using a toner cartridge installation structure constructed in accordance with a preferred embodiment of the present invention. The electrophotographic machine, generally designated by reference numeral 10, comprises a laser printer. The laser printer 10 has a machine frame 11 and a body housing 12 enclosing the machine frame 11. The body housing 12 has a front door 12a through which various elements and components of the laser printer 10 housed in the body housing 12 are accessible to the operator for maintenance, repair and toner replenishment purposes.
The laser printer 10 has a photosensitized drum 14, the outer periphery of which is coated with a suitable photoconductive material. The drum 14 is suitably journaled within the machine frame 11 for rotation in the direction by means of a suitable drive mechanism (not...
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A laser printer (10) uses an elongated toner cartridge (24) adapted for insertion into a toner cartridge slot (25) defined within a body housing (12) of the printer (10). The slot (25) is elongated in shape and extends horizontally. The toner cartridge (24) extends along the slot (25) when received in it. The slot (25) has a mouth at one longitudinal end through which the toner cartridge (24) is inserted in and removed from the slot (25). A slot door (26) is provided for the mouth of the slot. The slot door (26) is supported to be movable between a first position for substantially closing the mouth and a second position for leaving the mouth open. The slot door (26) has inner and outer sides, the inner side facing toward inside of the slot (25) when the slot door (26) is located at the first position while facing upward when the slot door (26) is located at the second position. The slot door (26) has guide surfaces formed on its inner side for guiding the toner cartridge to establish alignment of the toner cartridge (24) relative to the slot (25) preparatory to inserting the former into the latter. The slot door (26) includes a toner collector vessel (62) for collecting any toner falling down from a used toner cartridge during its removal from the slot (25). The slot door (26) facilitates toner cartridge replacement, prevents ambient light from entering the slot (25) and avoids contamination of environment of the printer (10) with toner.
Description
The present disclosure relates to subject matter contained in Japanese Patent Application No. Hei-10-314626 filed on Nov. 5, 1998, which is expressly incorporated herein by reference in its entirety.1. Field of the InventionThe present invention relates to a toner cartridge installation structure for an electrophotographic machine.2. Description of the Related ArtThere are used various electrophotographic machines, including electrostatic copiers, laser facsimile machines, laser printers and the like, for generating images by utilizing technique known as electrostatic photography. A typical electrophotographic machine uses a photosensitized medium, in the form of a drum or a belt, having a photosensitized surface made of photoconductive insulating material. A charging unit is used to place a uniform electrostatic charge over the photosensitized surface preparatory to imaging. Then, a desired light image is either projected by an optical system or drawn by a laser beam scanner on the...
Claims
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Patent Timeline
Login to View More IPC IPC(8): G03G15/08G03G21/16
CPCG03G15/0875G03G15/0882G03G15/0865G03G15/0855G03G2215/068
InventorSATO, TSUTOMU
OwnerASAHI KOGAKU KOGYO KK